Product slicer and automatic slicer engagement mechanism

Abstract

A product slicer incorporating an automatic slicer engagement mechanism attached to a carriage assembly and configured for quick, safe, reliable, and releasable engagement with a belt to provide powered automated slicing, and disengagement to allow manual slicing.

We claim: 
     
       1. A product slicer ( 1100 ), comprising: a housing ( 1200 ); a knife ( 1300 ) mounted to the housing ( 1200 ) and rotatable about a central knife axis, the knife ( 1300 ) having a knife cutting edge ( 1320 ) defining a knife cutting plane;
 a carriage assembly ( 900 ) mounted to the housing ( 1200 ), the carriage assembly ( 900 ) including a carriage table ( 930 ) configured for reciprocating motion past the knife cutting edge ( 1320 ); 
 a drive system ( 1000 ) mounted to the housing ( 1200 ) and including at least one motor ( 1010 ) to drive a belt ( 1020 ); 
 an automatic slicer engagement mechanism ( 100 ) attached to the carriage assembly ( 900 ) and configured for releasable engagement with the belt ( 1020 ), wherein the automatic slicer engagement mechanism ( 100 ) includes:
 (a) a base ( 200 ); 
 (b) a fixed jaw ( 240 ) connected to the base ( 200 ) and having a belt engagement surface ( 241 ), wherein the fixed jaw ( 240 ) includes a belt recess ( 242 ) such that the belt engagement surface ( 241 ) is a recess base surface ( 246 ) at a recess depth ( 243 ), and at least one moving jaw tooth ( 410 ) is configured so that it cannot enter the belt recess ( 242 ); 
 (c) a moving jaw ( 400 ) movably connected to the base ( 200 ), wherein the moving jaw ( 400 ) comprises the at least one moving jaw tooth ( 410 ) and at least one arm ( 430 ); and 
 (d) a slide ( 300 ) in slidable cooperation with the base ( 200 ) and in cooperating with the at least one arm ( 430 ), wherein the slide ( 300 ) is configured to move from a first position to a second position thereby displacing the at least one arm ( 430 ) and the moving jaw ( 400 ) from a disengaged state to an engaged state, wherein in the disengaged state the fixed jaw ( 240 ) and the moving jaw ( 400 ) do not engage the belt ( 1020 ) and the carriage assembly is manually movable, and in the engaged state the at least one moving jaw tooth ( 410 ) is substantially parallel with the belt engagement surface ( 241 ) and the belt ( 1020 ) is securely engaged between the fixed jaw ( 240 ) and the moving jaw ( 400 ) so that powered movement of the belt ( 1020 ) produces powered movement of the carriage assembly ( 900 ). 
 
 
     
     
       2. The product slicer ( 1100 ) of  claim 1 , wherein the slide ( 300 ) includes an actuating surface ( 600 ) to transition from a first slide thickness ( 330 ) to a second slide thickness ( 340 ), and wherein in the first position a portion of the at least one arm ( 430 ) is adjacent the first slide thickness ( 330 ) until an actuator ( 700 ) applies an engagement force causing the slide ( 300 ) to move relative to the at least one arm ( 430 ) resulting in the actuating surface ( 600 ) traversing a portion of the at least one arm ( 430 ) to the second position wherein a portion of the at least one arm ( 430 ) is adjacent the second slide thickness ( 340 ), and wherein the second slide thickness ( 340 ) is greater than the first slide thickness ( 330 ) and produces movement of moving jaw ( 400 ) as the slide ( 300 ) moves from the first position to the second position. 
     
     
       3. The product slicer ( 1100 ) of  claim 2 , wherein the actuating surface ( 600 ) is oriented at an actuating surface angle ( 610 ) that is no more than 60 degrees. 
     
     
       4. The product slicer ( 1100 ) of  claim 1 , wherein the moving jaw ( 400 ) is biased toward the disengaged state. 
     
     
       5. The product slicer ( 1100 ) of  claim 4 , wherein the slide ( 300 ) is biased toward the second position. 
     
     
       6. The product slicer ( 1100 ) of  claim 1 , wherein the linear translation from the first position to the second position is less than 9.5 mm and causes less than 30 degrees of rotation of the moving jaw ( 400 ) from the disengaged state to the engaged state. 
     
     
       7. The product slicer ( 1100 ) of  claim 1 , wherein the belt recess ( 242 ) has a belt recess height ( 244 ) and the at least one moving jaw tooth ( 410 ) has a tooth height ( 412 ) that is greater than the belt recess height ( 244 ), preventing entry of the at least one moving jaw tooth ( 410 ) into the belt recess ( 242 ). 
     
     
       8. The product slicer ( 1100 ) of  claim 6 , wherein the actuator ( 700 ) includes an actuator handle ( 710 ), attached to the exterior of the housing ( 1200 ), and a rod extending from the actuator handle ( 710 ) to the automatic slicer engagement mechanism ( 100 ). 
     
     
       9. The product slicer ( 1100 ) of  claim 8 , wherein the actuator handle ( 710 ) is eccentrically connected to the rod, and the rod cooperates with an engagement region ( 310 ) of the slide ( 300 ) such that rotation of the actuator handle ( 710 ) produces movement of the rod, which moves the slide ( 300 ) from the first position to the second position. 
     
     
       10. A product slicer ( 1100 ), comprising: a housing ( 1200 ); a knife ( 1300 ) mounted to the housing ( 1200 ) and rotatable about a central knife axis, the knife ( 1300 ) having a knife cutting edge ( 1320 ) defining a knife cutting plane; a carriage assembly ( 900 ) mounted to the housing ( 1200 ), the carriage assembly ( 900 ) including a carriage table ( 930 ) configured for reciprocating motion past the knife cutting edge ( 1320 ); a drive system ( 1000 ) mounted to the housing ( 1200 ) and including at least one motor ( 1010 ) to drive a belt ( 1020 ); an automatic slicer engagement mechanism ( 100 ) attached to the carriage assembly ( 900 ) and configured for releasable engagement with the belt ( 1020 ), wherein the automatic slicer engagement mechanism ( 100 ) includes: (a) a base ( 200 ); (b) a fixed jaw ( 240 ) connected to the base ( 200 ) and having a belt engagement surface ( 241 ); (c) a moving jaw ( 400 ) pivotably connected to the base ( 200 ) about a pivot axis, wherein the moving jaw ( 400 ) has at least one moving jaw tooth ( 410 ) and at least one arm ( 430 ) located on opposite sides of the pivot axis, and wherein the moving jaw ( 400 ) is biased toward the disengaged state; and (d) a slide ( 300 ) slidably attached to the base ( 200 ) and in contact with the at least one arm ( 430 ), wherein the slide ( 300 ) is configured to move from a first position to a second position thereby displacing the at least one arm ( 430 ) and pivoting the moving jaw ( 400 ) from a disengaged state to an engaged state, wherein in the disengaged state the fixed jaw ( 240 ) and the moving jaw ( 400 ) do not engage the belt ( 1020 ) and the carriage assembly is manually movable, and in the engaged state the at least one moving jaw tooth ( 410 ) has rotated to be substantially parallel with the belt engagement surface ( 241 ) and the belt ( 1020 ) is securely engaged between the fixed jaw ( 240 ) and the moving jaw ( 400 ) so that powered movement of the belt ( 1020 ) produces powered movement of the carriage assembly ( 900 ); and an actuator ( 700 ) that controls the position of the slide ( 300 ). 
     
     
       11. The product slicer ( 1100 ) of  claim 10 , wherein the fixed jaw ( 240 ) includes a belt recess ( 242 ) such that the belt engagement surface ( 241 ) is a recess base surface ( 246 ) at a recess depth ( 243 ), and the at least one moving jaw tooth ( 410 ) is configured so that it cannot enter the belt recess ( 242 ). 
     
     
       12. The product slicer ( 1100 ) of  claim 10 , wherein the actuator ( 700 ) applies an engagement force and a disengagement force to the slide ( 300 ), wherein the engagement force is the force that must be applied to the slide ( 300 ) to move the slide ( 300 ) from the first position to the second position and displace the at least one arm ( 430 ), and the disengagement force is the force that must be applied to the slide ( 300 ) to move the slide from the second position to the first position, wherein the slide ( 300 ) and the at least one arm ( 430 ) are configured to require the engagement force to be greater than the disengagement force. 
     
     
       13. The product slicer ( 1100 ) of  claim 12 , wherein the slide ( 300 ) includes an actuating surface ( 600 ) to transition from a first slide thickness ( 330 ) to a second slide thickness ( 340 ), and wherein in the first position a portion of the at least one arm ( 430 ) is adjacent the first slide thickness ( 330 ) until the actuator ( 700 ) applies the engagement force causing the slide ( 300 ) to move relative to the at least one arm ( 430 ) resulting in the actuating surface ( 600 ) traversing a portion of the at least one arm ( 430 ) to the second position wherein a portion of the at least one arm ( 430 ) is adjacent the second slide thickness ( 340 ), and wherein the second slide thickness ( 340 ) is greater than the first slide thickness ( 330 ) and produces rotation of moving jaw ( 400 ) as the slide ( 300 ) moves from the first position to the second position. 
     
     
       14. The product slicer ( 1100 ) of  claim 10 , wherein the slide ( 300 ) is biased toward the second position. 
     
     
       15. The product slicer ( 1100 ) of  claim 10 , wherein the linear translation from the first position to the second position is less than 9.5 mm and the rotation of the moving jaw ( 400 ) from the disengaged state to the engaged state is less than 30 degrees. 
     
     
       16. The product slicer ( 1100 ) of  claim 11 , wherein the belt recess ( 242 ) has a belt recess height ( 244 ) and the at least one moving jaw tooth ( 410 ) has a tooth height ( 412 ) that is greater than the belt recess height ( 244 ), preventing entry of the at least one moving jaw tooth ( 410 ) into the belt recess ( 242 ). 
     
     
       17. A product slicer ( 1100 ), comprising: a housing ( 1200 ); a knife ( 1300 ) mounted to the housing ( 1200 ) and rotatable about a central knife axis, the knife ( 1300 ) having a knife cutting edge ( 1320 ) defining a knife cutting plane;
 a carriage assembly ( 900 ) mounted to the housing ( 1200 ), the carriage assembly ( 900 ) including a carriage table ( 930 ) configured for reciprocating motion past the knife cutting edge ( 1320 ); 
 a drive system ( 1000 ) mounted to the housing ( 1200 ) and including at least one motor ( 1010 ) to drive a belt ( 1020 ); 
 an automatic slicer engagement mechanism ( 100 ) attached to the carriage assembly ( 900 ) and configured for releasable engagement with the belt ( 1020 ), wherein the automatic slicer engagement mechanism ( 100 ) includes:
 (a) a base ( 200 ); 
 (b) a fixed jaw ( 240 ) connected to the base ( 200 ) and having a belt engagement surface ( 241 ); 
 (c) a moving jaw ( 400 ) movably connected to the base ( 200 ), wherein the moving jaw ( 400 ) comprises the at least one moving jaw tooth ( 410 ) and at least one arm ( 430 ); 
 (d) a slide ( 300 ) in slidable cooperation with the base ( 200 ) and in cooperating with the at least one arm ( 430 ), wherein the slide ( 300 ) is configured to move from a first position to a second position thereby displacing the at least one arm ( 430 ) and the moving jaw ( 400 ) from a disengaged state to an engaged state, wherein in the disengaged state the fixed jaw ( 240 ) and the moving jaw ( 400 ) do not engage the belt ( 1020 ) and the carriage assembly is manually movable, and in the engaged state the at least one moving jaw tooth ( 410 ) is substantially parallel with the belt engagement surface ( 241 ) and the belt ( 1020 ) is securely engaged between the fixed jaw ( 240 ) and the moving jaw ( 400 ) so that powered movement of the belt ( 1020 ) produces powered movement of the carriage assembly ( 900 ); and 
 (e) a jaw biasing device ( 440 ) disposed between the fixed jaw ( 240 ) and the moving jaw ( 400 ) wherein the jaw biasing device ( 440 ) biases the moving jaw ( 400 ) to the disengaged state. 
 
 
     
     
       18. The product slicer ( 1100 ) of  claim 17 , further comprising a slide biasing device ( 320 ) disposed between the slide ( 300 ) and a portion of the base ( 200 ) wherein the slide biasing device ( 320 ) biases the slide ( 300 ) to the engaged state.